Watch dial



FIG. 1 is a front elevational view of a watch dial showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a right side perspective view thereof; and,

FIG. 4 is a left side perspective view thereof.

The broken lines in the drawing figures form no part of the claimed design. 

CLAIM The ornamental design for a watch dial, as shown and described. 